Black and Blue Magic

From a three-time Newbery Honor author: Harry Houdini Marco had it hard enough as a normal clumsy twelve-year-old-but growing wings made it even worse. Then he meets a mysterious traveling salesman named Mr. Mazzeeck. But Mr. Mazzeeck is more than a traveling salesman, he’s a wizard-at least, he claims to be. Before he leaves town, Mr. Mazzeeck gives Harry a bottle of magical oil, saying that the potion will give him wings. And to Harry’s amazement, the oil works: He gets wings! Now he just has to figure out how to use them.This book features an extended biography of Zilpha Keatley Snyder.